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Preparation method of magnetic porous carbon/ ferric oxide nano composite material for oil-water separation

An iron oxide nanometer, oil-water separation technology, applied in chemical instruments and methods, alkali metal compounds, immiscible liquid separation, etc. The effects of operability and development prospects, low production cost, and simple preparation method

Inactive Publication Date: 2014-07-09
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing a magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation in order to solve the above-mentioned technical problems such as the complicated preparation process of the porous carbon material and the adsorption capacity and recyclability of the oil-water separation material.

Method used

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  • Preparation method of magnetic porous carbon/ ferric oxide nano composite material for oil-water separation
  • Preparation method of magnetic porous carbon/ ferric oxide nano composite material for oil-water separation

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Experimental program
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Effect test

Embodiment 1

[0026] A magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation, namely porous carbon / Fe 3 o 4 powder.

[0027] The preparation method of the above-mentioned magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation specifically includes the following steps:

[0028] Firstly, Fe-MIL-101 metal-organic framework material with porous structure was prepared by hydrothermal method;

[0029] Then, the obtained Fe-MIL-101 metal-organic framework material with a porous structure was controlled at a heating rate of 5 °C / min, under H 2 :N 2 The flow rate is 4%: under the condition of 96%, the temperature is raised to 600°C, and calcined for 6h, the porous carbon / Fe 3 o 4 Magnetic powder, that is, magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation.

[0030] The precursor Fe-MIL-101 used above was scanned by a Rigaku D / max 2000 / PC X-ray diffractometer, and the obtained ...

Embodiment 2

[0035] A magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation, namely porous carbon / γ-Fe 2 o 3 powder.

[0036]The preparation method of the above-mentioned magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation specifically includes the following steps:

[0037] First, Fe-MIL-100 metal-organic framework materials with porous structure were prepared by hydrothermal method;

[0038] Then, control the heating rate of the obtained Fe-MIL-100 metal-organic framework material with a porous structure at 2.5°C / min, and calcinate it at 500°C for 8 hours in a vacuum state to obtain black porous carbon / γ-Fe 2 o 3 Powder, that is, magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation.

[0039] The black porous carbon / γ-Fe obtained above 2 o 3 The magnetic powder, that is, the magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation...

Embodiment 3

[0044] A magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation, namely porous carbon / Fe 3 o 4 powder.

[0045] The preparation method of the above-mentioned magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation specifically includes the following steps:

[0046] First, Fe-MIL-100 metal-organic framework materials with porous structure were prepared by hydrothermal method;

[0047] Then, the obtained Fe-MIL-100 metal-organic framework material with a porous structure was controlled at a heating rate of 2°C / min. 2 :N 2 The flow rate is 4%: under the condition of 96%, the temperature is raised to 500°C, and calcined for 4 hours, the porous carbon / Fe 3 o 4 Magnetic powder, that is, magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation.

[0048] The porous carbon / Fe obtained above 3 o 4 Magnetic powder, tested by BET with Autosorb-1 of American Kangta Company...

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Abstract

The invention discloses a preparation method of a magnetic porous carbon / ferric oxide nano composite material for oil-water separation, wherein the magnetic porous carbon / ferric oxide nano composite adsorption material for oil-water separation is porous carbon / Fe3O4 magnetic powder or porous carbon / gamma-Fe2O3 magnetic powder. The preparation method comprises the following steps: firstly, preparing a Fe-MIL-101 or Fe-MIL-100 metal-organic framework material of a porous structure by utilizing a hydrothermal method; then controlling the temperature to be 500-700 DEG C at the N2 / H2 atmosphere or the vacuum state, and forging for 2-8 hours, thereby obtaining the magnetic porous carbon / ferric oxide nano composite adsorption material for oil-water separation. The adsorption material can adsorb oil substances in water well; moreover, adsorption materials dispersed into a solution as well as the adsorbed oil materials can be recycled only by magnets; the preparation method is simple to operate, is low in production cost, is good safety performance, and is high in practicability.

Description

technical field [0001] The invention relates to a magnetic porous carbon / iron oxide nanocomposite adsorption material for oil-water separation. The material has a large specific surface area and good lipophilic and hydrophobic properties, and is mainly used in an oil-water purification process. Background technique [0002] To address the worrisome oil spill problem, porous carbon materials have attracted much attention due to their unique properties. Porous carbon materials have a highly developed pore structure and a large specific surface area, resulting in excellent adsorption properties. Compared with adsorbents such as clay, perlite and natural zeolite, it has outstanding advantages, such as: carbon materials are hydrophobic adsorbents, which can still function in the presence of water or water vapor; carbon materials are not only suitable for It can also be used to absorb land spills and water spills; and when it is used to remove oil on water, it will not sink after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30B01D17/02
Inventor 张娜赵越孙玉见班元浩杨雁茹
Owner SHANGHAI INST OF TECH
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